5235351661 has 2 divisors, whose sum is σ = 5235351662. Its totient is φ = 5235351660.

The previous prime is 5235351629. The next prime is 5235351679. The reversal of 5235351661 is 1661535325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5208508900 + 26842761 = 72170^2 + 5181^2 .

It is a cyclic number.

It is not a de Polignac number, because 5235351661 - 2⁵ = 5235351629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5235351661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5235354661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2617675830 + 2617675831.

It is an arithmetic number, because the mean of its divisors is an integer number (2617675831).

Almost surely, 2^5235351661 is an apocalyptic number.

It is an amenable number.

5235351661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5235351661 is an equidigital number, since it uses as much as digits as its factorization.

5235351661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 37.

The square root of 5235351661 is about 72355.7299804238. The cubic root of 5235351661 is about 1736.3953717550.

Adding to 5235351661 its reverse (1661535325), we get a palindrome (6896886986).

The spelling of 5235351661 in words is "five billion, two hundred thirty-five million, three hundred fifty-one thousand, six hundred sixty-one".